add workflow to gather approvals on release branch

Author: PiotrKorkus

.github/workflows/check_release_approvals.yml

@@ -0,0 +1,51 @@
+# *******************************************************************************
+# Copyright (c) 2026 Contributors to the Eclipse Foundation
+#
+# See the NOTICE file(s) distributed with this work for additional
+# information regarding copyright ownership.
+#
+# This program and the accompanying materials are made available under the
+# terms of the Apache License Version 2.0 which is available at
+# https://www.apache.org/licenses/LICENSE-2.0
+#
+# SPDX-License-Identifier: Apache-2.0
+# *******************************************************************************
+name: Check Release Branch Approvals
+on:
+  pull_request_review:
+    types: [submitted, edited, dismissed]
+jobs:
+  check-approvals:
+    name: Verify Required Approvals
+    if: startsWith(github.event.pull_request.base.ref, 'release/')
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+      pull-requests: write
+    steps:
+      - name: Checkout code
+        uses: actions/checkout@v4
+      - name: Set up Python
+        uses: actions/setup-python@v5
+        with:
+          python-version: '3.12'
+          cache: 'pip'
+          cache-dependency-path: 'scripts/tooling/requirements.txt'
+      - name: Install dependencies
+        run: |
+          pip install -r scripts/tooling/requirements.txt
+      - name: Check Release Approvals
+        id: check-approvals
+        env:
+          REPO_OWNER: ${{ github.repository_owner }}
+          REPO_NAME: ${{ github.event.repository.name }}
+          PR_NUMBER: ${{ github.event.pull_request.number }}
+          BASE_BRANCH: ${{ github.base_ref }}
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        run: |
+          python3 scripts/tooling/cli/release/check_release_approvals.py
+      - name: Success
+        if: steps.check-approvals.outputs.all-approved == 'true'
+        run: |
+          echo "✅ All modules have required approvals"
+          echo "Approved modules: ${{ steps.check-approvals.outputs.approved-modules }}"